Restoring Commando covers

Ok,guys. I got the fins off in one piece....er...should I say 4 pieces!! Thanks 65Charger for the tips. I used a long bladed knife and just sliced underneath the fins and through the black adhesive that was holding the fins on. I'm going to blast the covers clean and repaint them with wrinkle black paint then reattach the fins with weatherstrip adhesive.

Now, the small wiring harness holding brackets seem to be covered in a rubber-like coating over the metal tab. Is there a product available today that would duplicate this covering?

Thanks gang!